SATURN SERIES “SMART” SEISMIC SWITCH

Earthquake & Warning - Earthquake Safety Systems

Suitable for: Control Rooms, Industrial Processes, Systems, Motors, Electronic Doors, Personnel Safety Alarms – via existing P.A. systems, Elevators, Solenoids, and O.E.M. applications.

Compliance with ASCE 25-97, ASME A17.1, and CA3137 is achieved with this highly flexible, state-of-the-art technology.

Provides emergency control or shutdown and reports local XYZ peak earthquake intensity data in “g” force.

Description

Advanced UL 508 Seismic Switch – Reliable, Intelligent, and Built for Industrial Safety

Designed for seamless integration, this ready-to-install UL 508-compliant seismic switch delivers robust, real-time earthquake detection with unparalleled reliability. Featuring three Form C control relay outputs, this system provides:

Dry, isolated contacts for secure operation
Battery backup with an external charger for continuous power
P-wave & S-wave detection for rapid seismic response
User-selectable trigger levels to meet local seismic requirements

Engineered for safety and NEC Electrical Code compliance, the system ensures that operators are never exposed to live circuits during RESET or TEST procedures. After a seismic event, it can be programmed to:

Remain in a latched protective state until manually reset
Automatically trip momentarily (1 to 60 seconds) for quick reset
Work seamlessly in industrial and commercial environments

Precision Sensing & Immunity to False Triggers

This maintenance-free, solid-state digital tri-axial seismic sensor accurately measures earthquake intensity in real time across the X, Y, and Z axes, outputting Peak Ground Acceleration (PGA) values for system performance analysis.

Advanced filtering technology eliminates false triggers from:

Heavy machinery
Trucks
Compressors
Trains
Elevators

Proven reliable performance in rail lines, factories, and high-vibration zones
2/2 or 2/3 voting configuration recommended for safety-critical applications

Effortless Installation & Integration

Internal terminal block for simple field wiring of power & relay outputs
Quick setup with minimal maintenance requirements
A robust, intelligent, and compliant solution for earthquake-triggered safety automation

This seismic switch is built to protect, monitor, and respond—ensuring operational safety in the most demanding environments.

SPECIFICATIONS

Sensors	Solid state, triaxial accelerometer in three orthogonal axes. Detects vertical “P” and horizontal “S” wave earthquake acceleration (X, Y & Z axes). Stores and displays Peak Ground Acceleration (PGA) values on each axis, in “g” when triggered.*
Frequency Response	1 Hz – 10 Hz or, 1 Hz – 15 Hz as programmed. Sensor filters non-earthquake (industrial) vibrations. User-adjustable for ASCE 25-97, ASME A17.1 & CA3137 trigger response.
Setpoints	User selectable from 0.025g to 0.5g on each axis (X, Y & Z). Terminal communication program supplied with instrument.
Communications	RS-232C serial (3-wire) or USB for programming & PGA data recovery.
Diagnostics	Power-On Self-Test (POST) and diagnostic commands.
LED indicators	“Seismic Trip”; via internal LED indicator and integral lamp in front panel Test/Reset switch.
Seismic Activation	Front panel visual indicator, Form C relay contacts.
Control Output	Three independently programmable alarm output control relays. Form C, dry, isolated alarm relay contacts rated 4 amps @ 250 VAC). Unit provides one (1) common fault alarm (power or sensor) and two (2) seismic alarms. Following a seismic trip, system can automatically reset after delay OR remain latched until manually reset via front panel switch.
Power Supply (UL)	120 VAC, 50 / 60 Hz or 220 VAC, 50 Hz (specify). Rechargeable 12 VDC, 1.2 Ah Sealed Lead Acid battery. 1+ hr reserve at maximum demand. External charger.
Physical	Size, 8″ W X 8″ D X 5″ H; 9 lbs (19 lbs w/ mounting plate) Enclosure NEMA 4 standard. Options include: NEMA 4X, bypass switch and/or vertical mount Sealed cable and conduit entry fitting. Operating temperature, -20º C to + 70º C. Humidity, 0% – 95% (non-condensing).
Installation	Via four ¼” bolts (one bolt for optional plate), rigidly attached directly to building slab or other large, inertial seismic mass. Mounts horizontally. Vertical (wall-mount) unit optionally available.